1201121002 has 16 divisors (see below), whose sum is σ = 1841190912. Its totient is φ = 587407120.

The previous prime is 1201120939. The next prime is 1201121003. The reversal of 1201121002 is 2001211021.

It is a super-3 number, since 3×1201121002³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1201121002.

It is not an unprimeable number, because it can be changed into a prime (1201121003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195408 + ... + 201460.

It is an arithmetic number, because the mean of its divisors is an integer number (115074432).

Almost surely, 2^1201121002 is an apocalyptic number.

1201121002 is a deficient number, since it is larger than the sum of its proper divisors (640069910).

1201121002 is a wasteful number, since it uses less digits than its factorization.

1201121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1201121002 is about 34657.1926445291. The cubic root of 1201121002 is about 1062.9893668586.

Adding to 1201121002 its reverse (2001211021), we get a palindrome (3202332023).

The spelling of 1201121002 in words is "one billion, two hundred one million, one hundred twenty-one thousand, two".